sjcowboywife sjcowboywife

16-05-2017
Mathematics

contestada

how many 7-digit phone numbers can be formed if the first digit cannot be zero and no digit can be repeated

Respuesta :

Аноним Аноним

16-05-2017

8 * 9 * 8 * 7 * 6 * 5 * 4

Answer Link

16-05-2017

If the first digit can not be 0 or 1, then there are 8 choices for the first digit. The other 6 have no restrictions, so there are 10 choices for each of those. 8⋅1000000

Answer Link

Otras preguntas

How does the atmosphere make the earth suitable for life?

The first step in deforestation in the Amazon is _______.

Which is the best characteristic that distinguishes the kingdom Archaebacteria from the kingdom Eubacteria

Write a question and answer to New York's Regional Location including Bordering State.

According to the ancient Greeks, what does a truly great character do? A. act courageously and wisely B. value one's pride above all else C. use deception t

What is the volume of this triangular prism? A. 532 cm3 B. 54 cm3 C. 108 cm3 D. 216 cm3

What unit would be best to use for measuring the weight of a stapler?

The United States constitution provides for a strong central government. In the sentence which adjective modify government? A. a, strong, central B. the, United

The probability that you will get grounded if you have a bad grade is 85%. The probability that you will get grounded and have extra chores is 50%. What is the

clarification identifies organisms using what nomenclature